Finding the Third Proportional to 5,615.25 and 12,155.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,615.25 : 12,155.25 = 12,155.25 : x
2. Step 2: Convert to fraction form
   5,615.25/12,155.25 = 12,155.25/x
3. Step 3: Cross multiply
   5,615.25x = 12,155.25 × 12,155.25
4. Step 4: Simplify right side
   5,615.25x = 147,750,102.56
5. Step 5: Solve for x
   x = 147,750,102.56/5,615.25
6. Step 6: Final answer
   x = 26,312.29